public class Plus {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入第一个数");
        int aa = scanner.nextInt();
        System.out.println("请输入第二个数");
        int oo = scanner.nextInt();
        int sum =aa+oo;
        int sub = aa-oo;

        System.out.println("两数之和"+sum);
        System.out.println("两数之差"+sub);



    }
